hl 60u circuit

LU9DPD Daniel - Homebrew, antenas, balunes, expediciones, circuitos, electrónica, torres, fotos y relatos, todo referente a radioafición, radioaficionados y radioamateur

EH antenna power lost considerations - Out of Balance Current or Longitudinal Mode Current in the Coaxial Cable causes radiation from the coax. But how large a proportion of the total power is radiated or lost from this Current?

HLARA home page - Heartland Antique Radio Association of Tulsa, Oklahoma

Charlie's CQ Room - Ham radio site devoted to classic collectible amateur and military radios, featuring vintage ham radio color photos and commentary, free downloadable manuals and pamphlets and links for ham radio hobbyists.

AR88 receiver - AR88 is a general purpose communications receiver manufactured by RCA in the U.S.A between 1941 and 1945.

South Orange Amateur Radion Association - SOARA k6SOA South Orange Amateur Radio Association. Serving ham radio enthusiasts in south Orange County, California. We provide amateur radio training and testing. We support 6 repeaters and have monthly meetings.

Ashland Amateur Radio Technical Society - This is a new club serving the Henry County area.

HLARC - Highland Lakes Radio Club - Highland Lakes amateur radio club web-site

Graphing Ham Licenses - Monthly graphs and raw numbers of the number of ham radio licenses granted by the FCC by n5dux

RF Cafe - Amateur Radio Links - RF Cafe is a unique portal of RF, microwave, wireless, and other engineering resources. Vast collection of equations, references and conversions for electrical, mechanical, physical, and mathematical fields.

Spiderbeam antennas  ^pop - High Performance Lightweight Antennas. The spider beam is a full size lightweight tribander yagi for 20/15/10m, made from fiberglass and wire. It has been specially developed as a highly efficient antenna for dx-pedition and portable use.

Aventrade - Radio battery store with online catalog, Yuasa Battery, NiMH Battery, UPS Battery, BB Battery, Luxeon LED Flashlight, Charger, Battery Pack, Battery Adapter, APC Battery, LED Flashlight, CR123A, Rechargeable Battery

VLF-LF And the Loop Aerial - The article discusses the theory of loop aerials for receiving and how they reduce the level of local noise. A Loop Aerial is described suitable for use on the LF and VLF bands together with a circuit of an interface loop tuner and preamplifier. The discussion extends to the problems of amplifier noise and the advantages of tuning the loop.

ARDF@DL online - ARDF-Funksport in Deutschland - ARDF-Funksportreferats im DARC

Heathkit Original Manuals - Heathkit Heath Original Manuals including Ham Parts, Catalogs, Magazines, and other Brands of Ham Amateur Radio Items, including CQ QST GE RCA ER 73

Pacific Coast Parts - ALPINE * AMANA * CASIO * CASIO-PHONEMATE * CLARION DENON * FISHER * HITACHI * KENWOOD * MENUMASTER PANASONIC * QUASAR * TECHNICS * TOSHIBA * SANYO

Radio Sweden International - Offers highlights of daily English language service, programs and frequencies, online reception report and request for QSL Card and newslinks.

Voice of Oromo Liberation (OLF) - Ethiopia

HLA S. Korea

Listen to the world - List of English language transmissions - Sohl List of English language transmissions

Audio Preamp - Easy circuit that provide good gain to weak audio signals

DigChip IC database - DigChip is a provider of integrated circuits documentation search engine, it's also distributor agent between buyers and distributors excess inventory stock.

50MHz frequency counter, V-meter - Circuit schematic PCB and photo documentation on building a 50 Mhz frequency counter

Antenna Noise and Signal Cancelling at LF - By using the signals from two antennas, controlling their relative amplitudes and controlling the phase of one of them, unwanted signal or unwanted noise can be phased out. Circuitry is described which uses the signal from a wire antenna to provide selective cancelling against the signal output from an LF loop antenna.

WD5HOH Regenerative(Regen) Receiver - This web page describes a small, single tuned circuit regenerative receiver primarily for daylight reception in the 16, 19, 22 and 25 meter international shortwave broadcast bands.